A novel analysis approach based on transverse resonance method (TRM) is presented for Ti:LINbO3 acoustical channel waveguide on LiNbO3 substrate. In this paper, we give how to construct the equivalent circuit of Ti:LiNbO3 acoustical channel waveguide
and the equivalent circuit of acoustical directional coupler with constant gap formed by Ti:LiNbO3 acoustical channel waveguide. And respective dispersion equations are deduced from the given equivalent circuits. The results show that this analysis approach is effective, simple
and convenient.

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Document Type: Research Article

Publication date: 01 January 2008

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Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.